@HiRuleLabs Look, I'm done playing nice with bounty programs that don't pay and protocols that ignore real threats. So here's 514 ETH (~$1.7M) walking out the door through a sophisticated bridge exploit on
@base , complete with a novel obfuscation technique.
Maybe if I just dump it publicly, someone will actually give a damn.
The Attack Timeline
June 25-27, 2025 - While everyone was sleeping, attackers extracted 514.54 ETH through carefully orchestrated transactions:
Phase 1: The Heist (June 26)
Transaction Hash Value (ETH) Time
97b8b4d443a12faafb9f8f84459947181fba75e34795150b4fc51e45c346f33c 30.196999 21:46:38
3359d1cbc2c23e5623d87ea0c506a6fa4fb19c79bbc751d937a81419bbe87035 30.196999 21:46:37
416fc1bc5eb01914679ea5475f2a9c8f5906df9f5276c8017840d61aef2eb433 30.193999 21:46:36
152b2bdfb14f9c0047a811f13fe1583703f13448d8d7c5b51d87f927e44112d3 15.2 21:36:12
...and dozens more in 15-30 ETH chunks
Primary Attacker: 0x3304E22D[REDACTED] Receiving Address: 0x36e7C3d[REDACTED] Total Stolen: 514.54 ETH
Phase 2: The Cover-Up (June 25-27)
Then came the really interesting part - 868 zero-value transactions, all containing the same input data: aFT
From Address Input Data Value Result
0x4f55DE9[REDACTED] aFT 0 Noise
0x0F5ab44[REDACTED] aFT 0 More noise
0x0E17C7B[REDACTED] aFT 0 Even more noise
[...865 more transactions just like this...]
The "aFT" Innovation
Here's what makes me laugh (or cry): These attackers are using "AFT" - Account Funding Transaction terminology from the traditional payment card industry. It's like robbing a bank while wearing a "Bank Inspector" badge....
IF you dont know,
AFTs are legitimate transaction types used for:
Cryptocurrency purchases, Digital wallet funding, Money transfers
By marking their transactions as "aFT", they're essentially hiding in plain sight, making their bridge exploit look like normal account funding activity.
What the System Caught
My monitoring infrastructure (that nobody takes seriously) detected:
AI Anomaly Alert: "$450,000 suspicious bridge activity"
Pattern Recognition: 97 circular transactions (A→B→A)
Bridge Correlation Confidence: 6.51-6.61 (high probability of exploit)
Timing Analysis: Multiple transactions within seconds
The Database Evidence
sql-- 886 transactions to single address
Target Address: 0x36e7C3d[REDACTED]
Total Transactions: 886
ETH Received: 514.54
Zero-Value Spam: 868
Pattern: Clear money laundering
#DeFi #BridgeExploit #CryptoSecurity #Base #RealExploitsNobodyCares